I am running a p4c800-e dlx in my gaming rig still (waiting for dual core before upgrade). I reformat my main 250gig harddrive every 6 months. Every driver for the MOBO and utilities can be dowloaded from the web here sre the sites.
For Chipset: Intels Webiste > Dowload Center > Chipset > 875p
http://downloadfinder.intel.com/scripts-df/filter_results.asp?strOSs=45&strTypes=DRV,ARC,SCD,UTL&ProductID=1043&OSFullName=Windows*+XP+Home+Edition&submit=Go!
For all other Dowloads:
Asus USA Webiste > Mobos > P4c800-e dlx > Dowloads (webiste is down atm)
I suggest installing the chipset driver rite after windows, and using the other up to date drivers from the website rather than the support CD. Also if you plan on running a Prescott get the Windows Support friver from update. I was having a slight problem running my 3.4 EE until I updated the windows support driver